Re: Transmission governor seals - Saab 9000 Bulletin Board - Saabnet.com
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Re: Transmission governor seals
Posted by BobS (more from BobS) on Sun, 2 Aug 2020 21:53:47
In Reply to: Re: Transmission, Mike Johnson, Sat, 1 Aug 2020 03:44:14
The seal that gets burned is on the output shaft and separates governor signal pressure from supply and/or sump pressures IIRC. The rubber seals are called “ lathe cut “ and have a square or rectangular cross section rather than round like an “O ring”. The main pressure is raised in reverse and goes even higher when the throttle is depressed. High pressure and shaft (car) speed in reverse over heats the rubber seal causing it to harden and crack. They will literally fall apart in pieces.
Lathe cut seals are common in industry. If you know the dimensions of the transmission seal, there maybe an equivalent available from a seal supplier.
posted by 173.28.5...
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